FractionAndProbability vs Flag Quiz X
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
FractionAndProbability
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ใซใผใใใใใใใใใใ่ฆใคใใชใใใๅๆฐใจ็ขบ็ใๅญฆใถใใจใใงใใ้ฉๆฐ็ใชใขใใชใงใใ
Flag Quiz X
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A simple, fun multiple-choice quiz: look at a flag and pick the country. - About 200 countries and territories from around the world - Two quiz modes: guess from the flag or from the map - Endless mode: keep going until you miss and set a new streak record - After each answer, see the country on the map with its region, population, area and GDP - Narrow the quiz by region, top GDP, island nations and more - Game Center leaderboards (10 questions / Endless) and achievements - Switch between English and Japanese anytime Works fully offline. A great way to learn world geography in spare moments.
Screenshots
Verdict
The clearest difference is ads: Flag Quiz X at none against FractionAndProbability's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 days. Both last shipped on October 28, 2026.
| Parameter | FractionAndProbability | Flag Quiz X |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days | Every 2 days |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.6 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 3 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Katsuhiko Yao | Hatsuhito Shimizu |
In-app purchases
FractionAndProbability
No in-app purchases
Flag Quiz X
No in-app purchases
Questions
Is FractionAndProbability free?
Is Flag Quiz X free?
Do FractionAndProbability or Flag Quiz X have ads?
Which is updated more often, FractionAndProbability or Flag Quiz X?
Other comparisons
